1KBR
CRYSTAL STRUCTURE OF UNLIGATED HPPK(R92A) FROM E.COLI AT 1.55 ANGSTROM RESOLUTION
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
---|---|---|---|
Type | Source | Accession Code | Details |
experimental model | PDB | 1IM6 | PDB ID 1IM6 |
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 8.5 | 292 | PEG4000, SODIUM CHLORIDE, ACETATE , pH 8.50, VAPOR DIFFUSION, HANGING DROP, temperature 292.0K |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
1.96 | 35 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 36.34 | α = 90 |
b = 46.943 | β = 110.49 |
c = 42.907 | γ = 90 |
Symmetry | |
---|---|
Space Group | P 1 21 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | CCD | ADSC QUANTUM 4 | MIRROR | 2001-10-10 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | NSLS BEAMLINE X9B | 0.97946 | NSLS | X9B |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Net I Over Average Sigma (I) | Redundancy | Number Reflections (All) | Number Reflections (Observed) | Observed Criterion Sigma (F) | Observed Criterion Sigma (I) | B (Isotropic) From Wilson Plot | ||||||||
1 | 1.55 | 30 | 96.3 | 0.093 | 14.5882 | 4.246 | 19262 | 19262 | 22.2 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1.55 | 1.61 | 92.5 | 0.51 | 1.8248 | 4.012 | 1843 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (I) | Cut-off Sigma (F) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R | PDB ID 1IM6 | 1.55 | 30 | 2 | 4 | 18109 | 13591 | 944 | 91.6 | 0.192 | 0.16 | 0.168 | 0.208 | RANDOM | 23.307 |
Temperature Factor Modeling | ||||||
---|---|---|---|---|---|---|
Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
Coordinate Error | ||
---|---|---|
Structure Solution Method | Refinement High Resolution | Refinement Low Resolution |
4 | 1170 | 1491 |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
s_similar_adp_cmpnt | 0.065 |
s_non_zero_chiral_vol | 0.06 |
s_approx_iso_adps | 0.054 |
s_zero_chiral_vol | 0.049 |
s_anti_bump_dis_restr | 0.028 |
s_from_restr_planes | 0.027 |
s_angle_d | 0.025 |
s_bond_d | 0.008 |
s_similar_dist | |
s_rigid_bond_adp_cmpnt |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 1277 |
Nucleic Acid Atoms | |
Solvent Atoms | 230 |
Heterogen Atoms | 1 |
Software
Software | |
---|---|
Software Name | Purpose |
DENZO | data reduction |
SCALEPACK | data scaling |
AMoRE | phasing |
SHELXL-97 | refinement |